Cold soles of the feet are mostly related to yang deficiency, which may be a manifestation of kidney yang deficiency, and may also be related to qi and blood deficiency; they are mostly unrelated to yin deficiency.
1. Kidney yang deficiency. Kidney is the root of innate nature, the root of yang, when various causes lead to kidney yang insufficiency (lack of yang of the kidney), yin and cold in the lower, the body is not warm, so the lower extremities can be seen cold performance, thus appearing cold feet, cold limbs, syncope (unconsciousness, accompanied by cold limbs, and even to the elbows and knees and above the cold), and other symptoms.
2. Qi and blood deficiency. Qi and blood is the basic material to maintain human life activities, when a variety of causes lead to the depletion of qi and blood, the body loses warmth and warmth, the symptoms of cold soles of the feet, will also be accompanied by the emergence of the color of the face yellow (yellow and no luster), fatigue (mental fatigue, physical exhaustion), less gas and lazy speech (lack of strength, do not want to talk), dizziness and vertigo and other symptoms.
To summarize, cold soles of feet may be related to yang deficiency, and may also be related to qi and blood deficiency, but not to yin deficiency. When symptoms of cold soles of feet appear, you should seek early medical treatment.